Imperviousness

2 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Impervious \Im*per"vi*ous\, a. [L. impervius; pref. im- not +
     per through + via way. See {Voyage}.]
     Not pervious; not admitting of entrance or passage through;
     as, a substance impervious to water or air.
     [1913 Webster]
  


           This gulf impassable, impervious.        --Milton.
     [1913 Webster]
  
           The minds of these zealots were absolutely impervious.
                                                    --Macaulay.
  
     Syn: Impassable; pathless; impenetrable; imperviable;
          impermeable. -- {Im*per"vi*ous*ly}, adv. --
          {Im*per"vi*ous*ness}, n.
          [1913 Webster]

From WordNet (r) 2.0 [wn]:

  imperviousness
       n : resistance to penetration by a liquid [syn: {impenetrability}]
           [ant: {penetrability}, {penetrability}]